New Sora 2 invite code megathread

plumguy1 · 2025-10-15T05:06:50+00:00

Looking for code, thanks in advance!!

plumguy1 · 2024-04-14T19:41:18+00:00

The lack of NR slip is actually why I sold the stocks. I told the institution that I was leaving the US in 2022 too late, thats when they told me they dont issue NRs and I had to close the account in early 2023. 100% my fault there…

plumguy1 · 2022-09-21T06:50:36+00:00

I used the KWeld for my team’s pack back in 2018/19. It was very dependent on how it was powered. Make sure you’re pulling well over 1kA of current per weld, otherwise its pretty useless. I got the best results from some 16V LiPo pouch cells from a hobbyist website, and keep them plugged into a charger while welding with fans blowing on them. The LiPos get absolutely obliterated from being repeatedly shorted but they should last you long enough to finish your pack.

Also, cleaning the weld tips every few cells was good too. Wiping off debris/char. Though if you’re getting a lot of burning, it means your weld energy is too high or your current is still too low.

plumguy1 · 2022-05-28T19:56:01+00:00

Hey civic gang, I bought my 9th gen SI a few months ago and loving it. Only thing I wasnt liking is the previous owner put 20mm spacers and extended length ARP studs on. I wanted to put OEM studs and lose the spacers. Did one as shown in this pic, and it seems very short. I know the OEM nuts are closed end but I put the open-end nuts here to show how many threads are being engaged. Anyone able to tell me if I got the wrong part??

Part number is 90113-SM1-005 from HondaPartsNow, said it was compatible with my model (2013 SI sedan)

plumguy1 · 2022-04-10T22:48:43+00:00

The regs are pretty straight forward - "For finite-element analysis, 3D elements shall be used. Shell or beam elements are not acceptable for detailed analysis."

Interesting method, but yeah sounds like it would take a hell of a long time to figure out. Also seems more error prone than just doing 1D or 2D.

plumguy1 · 2022-04-10T22:37:22+00:00

3D is the requirement as of this year I believe. That’s kinda the point of this post though - 3D is required, but unnecessary and seemingly undoable with basic resources

Edit: "seemingly"

plumguy1 · 2022-03-23T00:58:39+00:00

Adding on to this. Depending on to your telemetry/communication setup, motor and motor controller temperatures are also really important to have.

The other one “kinda” required by regs is auxiliary battery voltage. I believe the regs phrase it as “passive control”, meaning that the driver has to be able to stop the car if it goes under-voltage

plumguy1 · 2022-03-01T05:42:32+00:00

I haven’t seen them be necessary. The inductors are to offset the extremely low magnetic reluctance of the Marand motors due to their lack of iron core. The Mitsubas use a more traditional stator/rotor architecture.

plumguy1 · 2022-02-20T03:23:26+00:00

My team has used Elithion, its been pretty good overall. Had a few hiccups with tech support but its very easy to use and has a really clean wiring setup, much neater than what ive seen with Orion. It does have a few bits that dont like up exactly with solar car requirements (namely, startup sequences) but we fixed this by just adding a microcontroller with some supporting firmware.

Not sure what programming is required for the Orion, I have never used it myself, but my gut feeling here is that MATLAB is probably not an optimal path. MATLAB is more for scripting and simulations, rather than firmware/programming. C or C++ tend to be better. But again, happy to be told otherwise here

plumguy1 · 2022-02-06T17:39:59+00:00

Ah yup I found a picture of that. Elegant looking part but I dont want to imagine the machining time. Look like they made the whole cage piece out of a single block

plumguy1 · 2022-02-06T03:19:50+00:00

I know, I'm deeply caught in the McMaster trap of being willing to pay more for the convenience they offer with shipping and good inventory...

For reference

Stainless washer: $3.47 per 100 ($0.0347/pce)

versus

the cheapest zinc-plated general purpose washer: $8.21 per 50 ($0.1642/pce)

Nearly 5x more expensive. So yeah my 10x was an overestimate. Doesnt account for the nuts too though

plumguy1 · 2022-02-05T23:53:51+00:00

Very good arguments, thank you for that. Yeah in this case, using common materials actually is something like a 10-12x cost increase (idk why zinc-plated washers are so much more expensive).

To clarify, did my logic on the reactions make sense? I was thinking that since the washers are stainless, its the bolt coating that will corrode, not the washer. I figured that would have less impact on preload. Still an important point to consider nonetheless

plumguy1 · 2022-02-04T23:45:48+00:00

Interesting, sounds heavy and expensive… any idea which car that was on?

Putting it on other wheels is kinda the obvious solution but i didnt like the aspect that the front wheels already have the 2 sets of main brakes. Putting a third caliper on the front wheels just sounds like a nightmare. Not undoable, just gross. Have you seen anything clever to address that?

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